Directions From Washington and Northern Virginia: Take I-66 West to Gainesville. Proceed to exit 43B and turn right at the end of the ramp towards Route 29 North. At the next light, turn right at University Boulevard. Cross over I-66 and turn right at Wellington Road. Proceed several blocks and turn left at the light (7-11 is on your right) at Limestone Drive. Drive approximately 500 feet to the Gateway Business Center, 7669 Limestone Drive, on your left.